com.jn.sqlhelper.dialect.internal.limit.DefaultLimitHandler Maven / Gradle / Ivy
/*
* Copyright 2019 the original author or authors.
*
* Licensed under the LGPL, Version 3.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at http://www.gnu.org/licenses/lgpl-3.0.html
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jn.sqlhelper.dialect.internal.limit;
import com.jn.sqlhelper.dialect.pagination.RowSelection;
import com.jn.sqlhelper.dialect.internal.AbstractDialect;
public class DefaultLimitHandler extends AbstractLimitHandler {
public DefaultLimitHandler(AbstractDialect dialect) {
setDialect(dialect);
}
public DefaultLimitHandler() {
}
@Override
public String processSql(String sql,boolean isSubquery, boolean useLimitVariable, RowSelection selection) {
boolean useLimitOffset = (getDialect().isSupportsLimit()) && (getDialect().isSupportsLimitOffset()) && (LimitHelper.hasFirstRow(selection)) && (LimitHelper.hasMaxRows(selection));
return getLimitString(sql, isSubquery,useLimitVariable, useLimitOffset ? LimitHelper.getFirstRow(selection) : 0, getMaxOrLimit(selection));
}
}